Finding the Fourth Proportional to 12,740.22, 19,100.61 and 4,944.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,740.22 : 19,100.61 = 4,944.78 : x
2. Step 2: Convert to fraction form
   12,740.22/19,100.61 = 4,944.78/x
3. Step 3: Cross multiply
   12,740.22x = 19,100.61 × 4,944.78
4. Step 4: Simplify right side
   12,740.22x = 94,448,314.32
5. Step 5: Solve for x
   x = 94,448,314.32/12,740.22
6. Step 6: Final answer
   x = 7,413.40